Security readout for executives and security teams
Plain-English summary
CVE-2020-17387 affects Marvell QConvergeConsole 5.5.0.64. A remote attacker could abuse improper path validation to reach code execution as SYSTEM. The CVE notes authentication is required but can be bypassed, raising urgency for any exposed management console.
Executive priority
Treat this as high priority for environments using Marvell QConvergeConsole, because successful exploitation can run code as SYSTEM. Prioritize exposed management consoles first. There is no cited evidence of active exploitation in the provided sources.
Technical view
The flaw is in writeObjectToConfigFile in GWTTestServiceImpl, where a user-supplied path is not properly validated before file operations. It is categorized as CWE-22 and can lead to arbitrary code execution in SYSTEM context. CVSS is 8.8, high severity.
Likely exposure
Exposure is limited by the provided sources to Marvell QConvergeConsole 5.5.0.64. Risk is highest where the QConvergeConsole management interface is reachable from untrusted networks. The bundle does not identify other affected versions or CPEs.
Exploitation context
The sources support remote code execution with low complexity and no user interaction. They do not show CISA KEV listing or active exploitation evidence. Authentication is described as required, but the CVE also states that mechanism can be bypassed.
Researcher notes
Evidence is specific to QConvergeConsole 5.5.0.64 and the GWTTestServiceImpl writeObjectToConfigFile path handling issue. The bundle does not provide exploit details, patch version text, or telemetry proving exploitation in the wild.
Mitigation direction
- Review Marvell’s advisory for fixed versions or vendor-approved mitigation.
- Inventory and prioritize any QConvergeConsole 5.5.0.64 installations.
- Restrict management interface access to trusted administrative networks.
- Retire or isolate exposed instances if vendor remediation cannot be applied promptly.
Validation and detection
- Check asset inventory for Marvell QConvergeConsole 5.5.0.64.
- Confirm whether any management interface is externally reachable.
- Review configuration and logs for unexpected file-write or administrative activity.
- Verify remediation status against Marvell’s advisory.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-17387 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.marvell.com/content/dam/marvell/en/public-collateral/fibre-channel/marvell-fibre-channel-security-advisory-2020-07.pdfCVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-20-974/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.